Magnetic resonance navigation for head and neck lesions

Area of Science:

• Interventional Radiology
• Oncology
• Medical Imaging

Background:

• Interventional magnetic resonance imaging (iMRI) provides real-time visualization for minimally invasive procedures.
• Head and neck tumors present unique challenges for biopsy due to complex anatomy and critical structures.

Observation:

• A retrospective analysis of 22 iMRI-guided biopsies in 21 patients with head and neck or cranial base tumors was performed.
• Biopsies were navigated using a 0.5 Tesla superconducting open MRI system.
• Procedures were conducted under intravenous sedation, with one case requiring general anesthesia.

Findings:

• The study achieved a 92% concurrence rate between iMRI-guided fine-needle aspiration and subsequent surgical or open biopsy results.
• No complications were reported in any of the procedures.
• Deeper lesions were more accessible, and critical structures were better visualized, enhancing safety.

Implications:

• iMRI-guided biopsy enhances diagnostic accuracy and patient safety for head and neck tumors.
• This technique can potentially avoid morbid and disfiguring surgical interventions.
• Challenges include the need for specialized nonferromagnetic equipment and associated costs.